Like waves of light or water, sound waves in a typical medium are reciprocal, meaning their oscillations can propagate ...

The cooler, drier air of autumn is denser than warm and humid air, providing a more efficient medium for sound waves to travel.

Sound is basically pressure waves that are moving through some medium. So the sound that we usually hear is going through the air. And it's transmitted as what are called "longitudinal waves." ...

From the discovery of gravity to the first mission to defend Earth from an asteroid, here are the most important physics ...

The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND, SPEED OF SOUND. Compare: ACOUSTIC RADIATION. The levels of outdoor NOISE, whether they are intrusive or the normal ...

When the sound waves are in the audible frequency range ... and part is reflected back into the medium that contained the wave. Refraction can be demonstrated by dropping a coin in a bottle ...

Sound waves can reflect off surfaces ... Sound travels at a constant speed in a medium. If we know the speed of sound and the time it takes for the echo to be detected, we can use the equation ...

Deep in the heart of the massive Perseus cluster, giant galaxies stir, stars are torn from their homes and hot gas radiates ...

If the sound wave reaches our ears and our brains then we hear the sound. They also explain that sound needs something called a medium to travel through and Fran repeats a famous experiment by a ...

Other factors such as salinity also affect the refraction properties of the fluid column. In a stratified medium, sound waves may be trapped by acoustic ducts and caused to propagate horizontally.

Navigation technology found in most automobiles with self-driving and advanced driver assist systems is coming to your living ...

We love starting the day with a fresh smoothie, but we don't love the ear-piercing screech of a blender at dawn. All you need ...